Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Preparation of Fine Single-Crystalline Particles of Ferroxplana, $Ba_2Co_2Fe_{12}O_{22}$ from Crystallization of Glass

유리결정화에 의한 Ferroxplana $Ba_2Co_2Fe_{12}O_{22}$ 미세 단결정의 제조

  • 김성재 (부산대학교 공과대학 무기재료공학과) ;
  • 김동호 (부산대학교 공과대학 무기재료공학과) ;
  • 이재동 (부산대학교 공과대학 무기재료공학과) ;
  • 김태옥 (부산대학교 공과대학 무기재료공학과)
  • Published : 1993.03.01
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Abstract

As the fundamental research on preparation of fine single crystalline ferroxaplana by means of glass-crystallization methods using steel twin-roller, the properties of ferroxplana crystallized from glass were studied. Most of the specimens quenched by twin-roller at about 130$0^{\circ}C$ were glass phase, the crystallization of these glasses underwent multi-steps and ferroxplana phase was only stable in the temperature range of 88$0^{\circ}C$ to 95$0^{\circ}C$. Above 95$0^{\circ}C$ ferroxplana begines to be decomposed in glass. Ferroxplana had such magnetic properties as M8=29emu/g, MHC=166Oe, and Curie Temperature, Tc=610$\pm$5K.

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References

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